Solve the problem.The spring of a spring balance is 6.0 in. long when there is no weight on the balance, and it is 8.3 in. long with 9.0 lb hung from the balance. How much work is done in stretching it from 6.0 in. to a length of 12.2 in.?
A. 4.9 in.-lb
B. 75 in.-lb
C. 220 in.-lb
D. 12 in.-lb
Answer: B
Mathematics
You might also like to view...
Verify the identity.
= 
What will be an ideal response?
Mathematics
Give a verbal representation of f(x).f(x) = x2 - 13
A. Square the input x and then add 13 to obtain the output y. B. Take the square root of the input x and then subtract 13 to obtain the output y. C. Take the square root of the input x and then add 13 to obtain the output y. D. Square the input x and then subtract 13 to obtain the output y.
Mathematics
Multiply. Express the product in lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics
Find the reciprocal.
A. 
B. 4(a - b)
C. 
- 
D. 
Mathematics